Authors: Varun Chaturmutha (Georgia State University), Bernhard Fleck (ESA Science and Operations), Stuart Jefferies (Georgia State University)

We present evidence supporting wave reflection in the lower solar chromosphere based on helioseismic analysis of multi-height Doppler data from the SDO/HMI and the MOTH II instruments. This evidence is derived through a wave propagation model that incorporates both upward- and downward-traveling (reflected) waves. Moreover, we find that the height of the reflecting region varies with magnetic field strengths in a way that suggests a connection with the plasma β ∼ 1 region. We measure an effective reflection coefficient of 13% in a magnetically quiet region of the Sun.